Where someone leans isn't so much the issue. It's making their ideology central to their identity, pushing it in their work, and supporting others in the 'cult' while enforcing punishment against dissenters.

It's the behavior that is the issue. If people with right views were engaging in similar behavior, like we've seen with religious types, it wouldn't be any different.

Neither left or right are inherently ethical, for example, because these are not mutually inclusive variables.